Block-setting rack for sandpapering-machines



(No Model.) V

G. L. RUEHS. BLOCK SETTING RACK FOR SANDPAPERING MACHINES.

No. 495,758. Patented Apr. 18, 1898.

@ Q EQ g UNITED STATES PATENT OFFICE.

CHARLES L. RUEHS, OF CHICAGO, ILLINOIS.

BLOCK-SETTING RACK FOR SANDPAPERING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 495,758, dated April18, 1893. Application filed February 21 1893. Serial No. 463,237. (Nomodel.)

To all whom it may concern:

Be it known that 1, CHARLES L. Runes, a

' citizen of the United States of America, residin g at Chicago, in thecounty of Cook and State of Illinois, have invented a new and usefulBlock-Setting Rack for Sandpapering-Maphines, of which the following isa specificaion.

This invention relates to an auxiliary device intended for use inconnection with a sandpapering machine, which is made the subject of anapplication forLetters Patent of the United States, filed by me upon the21st day of February, A. D. 1893, Serial No. 463,238. In saidapplication mechanism is described adapted to carry a series of blockscovered with sandpaper back and forth over molding fed continuouslythrough a machine. The different blocks making up the series are fittedto different pieces of molding or to different portions of one piece,and as the said different pieces or portions are liable to vary inthickness, these blocks are vertically ad j ustable to adapt them to allthicknesses. The sandpaper upon the blocks must be removed from time totime, and it is the purpose of the device which forms the subject ofthis application to enable the operator by the use of duplicate blocks,if necessary, to adjust the blocks out of the machine and thusmaterially lessen the time lostin changing blocks or fitting the machinefor a new molding.

The device is illustrated by means of three figures of which,

Figure 1 is a plan of the block-setting rack; Fig.2 an end elevation;and Fig. 3 a side elevation partly in section, the right hand side ofthe latter figure being-in elevation" and the left hand partly insection taken in line 3-3, of Fig. 2. Said last figure also shows ablock and block-holder in position upon the rack illustrating the methodof adjusting the same for quick insertion in a sandpapering ma chine.

This device consists of a base, A, provided at each end with a series ofholes, a, and having guiding bars, a, secured by means of screws, afitting in the holes, a, which are tapped to receive them. Rising fromthe corners of the base, A, are four upright posts, a", slottedlongitudinally and upon these posts are carried adjustable bars, a,clamped in position by means of bolts, a and thumb nuts, a.

In my sandpapering machine, described in the application above referredto, the sandpapering blocks are carried by block-holders which containmeans for the vertical adjustment of the blocks, and which are carriedupon cross rods, themselves supported upon the side pieces of arectangular box, or frame, carried back and forth by mechanism fullydescribed in said application.

In Fig. 3 ablock is shown at F, resting upon a piece of molding, Y. Ablock-holder is shown at E, supported upon a cross rod, 6, carried byclamps, e upon the adjustable bars, a". In use, these adjustable barsare clamped at the same height from the base, A, that the side pieces ofthe frame in the sandpapering machine happen to be, and the bars a, uponthe base are adjusted to occupy the same positions as the guides uponthe bed of the sandpapering machine. The block-holders with theirsupporting devices are then placed upon the adjustable bars, a, andadjusted both vertically and laterally to the proper positions, afterwhich they may be placed in the sandpapering machine ready for use in afew minutes. This not only avoids stopping the machine during all thetime consumed by the adjustment, but the simple and compact constructionof this device enables the operator to get at the blockholders moreconveniently and to accomplish the adjustment in much less time than ifit were necessary to place the blocks in the machine for this purpose.

I claim as new and desire to secure by Letters Patent 1. A block-settingrack for sandpapering machines, consisting of a suitable base providedwith guides adjustable thereon and uprights carrying horizontal barsadjustable thereupon and provided with means for clampin gthem in anydesired position; substantially as described.

2. A block-setting rack for sandpapering machines comprising the flatbase, .A, having the guide bars, a, adj ustably secured thereto,

the corner posts, a vertically slotted and the side bars, a adjustablysecured to said posts by means of the nuts and bolts, a, of;substantially as described.

CHAS. L. RUEHS. Witnesses:

CHARLES O. SHERVEY, A. I. H. EBBESER.

ISO

